I'm not sure specifically as I haven't read this particular fanfic. It could potentially be about Aang dealing with the loss of Appa in a very emotional way, like burying him, and perhaps exploring themes of grief, friendship, and the bond they had.
Character development is key. In good fanfiction, we might see Aang grow in his understanding of Appa's needs and vice versa. Also, an engaging plot that takes them on new adventures, like exploring uncharted regions or facing new enemies, makes for great fanfiction. It should also be true to the original spirit of the characters from the source material.
Since I'm not entirely sure about this specific fanfic, but generally in Avatar: The Last Airbender fanfics, themes could include friendship, adventure, and the power of the elements. If 'buryinv' is a new character, perhaps themes could revolve around how they interact with aang and appa, like learning to trust each other.
Sure. One popular aang and appa fanfiction is 'The Adventures of Aang and Appa: Beyond the Nations'. It tells about their journey to unexplored lands. Another one is 'Appa's Secret Bond with Aang' which focuses on their deep emotional connection.
I'm not sure specifically about 'aang buryinv appa fanfic'. You could try searching on fanfiction platforms like Archive of Our Own. They have a vast collection of fanfics related to various shows and characters, and you might find something relevant there.
Well, first of all, Archive of Our Own is a great place to look. It has a vast collection of fanfics from all kinds of fandoms. So, start by going there and using their search function. Another option is FanFiction.net. However, not all fanfics are on these two sites. You might also want to check some Avatar - The Last Airbender specific fanfic communities or forums. Sometimes, fans share their works there that might not be on the more well - known platforms.
One idea could be a crossover where Ben 10's Omnitrix malfunctions near Avatar Aang's world. Ben and Aang team up to face a new threat that is causing chaos in both their realms. Maybe some of Ben's alien forms have unexpected interactions with the bending abilities in the Avatar world.
In a fanfiction, the Avatar State of Aang could be used in a more creative way. For example, Aang accidentally enters the Avatar State during a cultural festival. His friends are initially worried, but then they realize that in this state, Aang can communicate with the spirits present at the festival in a unique way. He learns secrets about the spirits and their connection to the human world, which he then uses to strengthen the bond between the two realms when he's out of the Avatar State.
One great Aang fanfic could be one where he has to face an unexpected new threat in the Spirit World. It might explore his growth as the Avatar even further, showing his unique connection to the spirits and how he uses airbending in creative ways to overcome challenges.